Article

Biodiesel a 'Rising Star' in Warner Bros. Fleet

December 2010, Green Fleet Magazine - Feature

by Tariq Kamal

It's a Friday morning at Warner Bros. Studios in Burbank, Calif., and the place is a madhouse. A steady stream of traffic winds through the maze of streets and alleys that cuts between the production offices, backlots, and 30 sound stages. From trucks and vans to actors' trailers, foot traffic to tour tram carts, there doesn't seem to be an inch of untraveled asphalt on the 110-acre lot. It's the kind of organized chaos expected at a major Hollywood studio.

For Jonathan Rosenfeld, Warner Bros. Studio Facilities' director of transportation, it's just another day at the office. He navigates through the traffic with ease from behind the wheel of a GEM neighborhood electric vehicle. Rosenfeld stops frequently to check in with his transportation captains and coordinators. Every production has one of each and many are old friends. He has only been on the Warner Bros. payroll for two years, but Rosenfeld is no stranger to show business.

"For 25 years, I worked as a freelance transportation coordinator for features and TV shows," he said. "One of the tools I brought to this job was experience in the trenches."

Every morning brings a new shooting schedule, and it's the responsibility of Rosenfeld, his team of dispatchers, and more than 300 drivers to be sure each production gets the vehicles it needs for the day's work. The job already seems daunting - the Warner Bros. fleet includes more than 400 vehicles, including Toyota Priuses, three-axle tractor trailers and everything in between - but Rosenfeld also oversees an important ongoing project: He is now running part of his fleet on 20-percent biodiesel.

Refreshing the Fleet

The cleaner-burning fuel helps Rosenfeld's largest vehicles meet California's famously strict emissions standards, which now require near-zero levels of particulates and nitrogen oxide (NOx) for heavy-duty diesel trucks. The Environmental Protection Agency (EPA) estimates that switching from 100-percent petroleum diesel to a 20-percent biodiesel blend - commonly referred to as B-20 - can reduce the output of particulate matter by up to 12 percent. Most diesel engines can run on B-20, but Rosenfeld hopes to increase the biodiesel concentration as he cycles in newer trucks.

Meanwhile, he must also rely on the latest in diesel particulate filter (DPF) technology and NOx-reducing exhaust treatment systems to stay within state guidelines.

"We have now purchased 26 brand-new large trucks, with another 60 to go," Rosenfeld said. "Some of the vehicles are so old, they can't even be retrofitted. We came up with a five-year plan to phase them out."

At a sound stage near the center of the lot, a 2009 Peterbilt three-axle is parked outside, its fifth wheel coupled to the props trailer for "The Mentalist," a crime drama television show. Bolted to the frame is a factory-installed DPF, designed to remove 85 to 100 percent of soot particles from the truck's exhaust.

To reduce NOx output, Peterbilt is among the majority of truck manufacturers that uses selective catalytic reduction (SCR) technology. In an SCR system, an ultra pure urea, more commonly known as diesel exhaust fluid or DEF, is injected from a proprietary tank into the truck's hot exhaust stream. The resulting chemical reaction converts nitrogen oxide into harmless water vapor and nitrogen gas.

"Ideally, the air coming out of the tailpipe is actually cleaner than when it passed through the radiator," Rosenfeld said.

The move toward biodiesel has not gone unnoticed on the lot. One production that exclusively uses the greener trucks is "The Closer," a TNT police procedural filmed at the studio as well as locations all over Los Angeles. Thanks in part to efforts by the show's star, actress Kyra Sedgwick, the show has become the studio's flagship "Green Production." Biodiesel also fuels the generators that power the location lights, plastic water bottles have been phased out in favor of refillable aluminum canisters, and the production offices are nearly paperless.

"We encourage all our productions to use the trucks running on B-20," Rosenfeld said, "but I believe she was the first to actually ask about it."

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